Foraminifera source details
Petters, S. W. (1983). Gulf of Guinea planktonic foraminiferal biochronology and geological history of the South Atlantic. The Journal of Foraminiferal Research. 13(1): 32-59.
188248
10.2113/gsjfr.13.1.32 [view]
Petters, S. W.
1983
Gulf of Guinea planktonic foraminiferal biochronology and geological history of the South Atlantic
The Journal of Foraminiferal Research
13(1): 32-59
Publication
Available for editors [request]
Planktonic
foraminifera
in
three
Gulf
of
Guinea
coastal
basins
(Benue
Trough,
Dahomey
Embayment,
and
Niger
Delta)
are
used
to
date
the
transgressive
onlap
wedges
in
the
region.
Major
transgressive
peaks
occurred
during
the
Cenomanian-early
Turonian,
late
Turonian-Coniacian,
middle-late
Maastrichtian,
early
Paleocene,
late
Paleocene,
latest
Paleocene-early
Eocene,
middle
Eocene,
latest
Eocene,
middle
Oligo
cene-early
Miocene,
late
early-early
middle
Miocene,
and
late
Miocene-Pliocene.
In
the
Upper
Cretaceous
the
dominance
of
heterohelicids
and
hedbergellids
in
the
early
marine
phases
allows
biostratigraphic
reso
lution
at
the
stage
level,
while
the
prevalence
of
normal
marine
environments
during
the
Tertiary
enables
the
recognition
of
low-latitude
planktonic
foraminiferal
zones.
In
general,
the
Cretaceous-Tertiary
environ
ments
in
the
Gulf
of
Guinea
favored
diversification
among
the
Heterohelicidae;
three
new
species
in
this
group
are
described,
namely,
Heterohelix fayose,
Chiloguembelina
subwilcoxensis,
and
Streptochilus dubeyi.
The
Gulf
of
Guinea
planktonic
foraminiferal
ages
improve
our
understanding
of
the
paleoenvironmellts
and
depositional
processes
in
the
South
Atlantic
Ocean
and add
precision
to
the
interpretation
of
the
timing
of
marine
transgressions
in
West
African
coastal
basins.
Date
action
by
Chiloguembelina subwilcoxensis Petters, 1983 † (original description)
Heterohelix fayose Petters, 1983 † accepted as Planoheterohelix globulosa (Ehrenberg, 1840) † (original description)
Streptochilus dubeyi Petters, 1983 † (original description)
Heterohelix fayose Petters, 1983 † accepted as Planoheterohelix globulosa (Ehrenberg, 1840) † (original description)
Streptochilus dubeyi Petters, 1983 † (original description)